West Pittsburg is an unincorporated community and census-designated place (CDP) in southern Taylor Township, Lawrence County, Pennsylvania, United States.

[3] It is located in the Beaver River valley 5 miles (8 km) south of New Castle.

Its main street is the north-south Pennsylvania Route 168, which crosses the river at the southern end of the community.

For a small community, West Pittsburg had one of the largest railroad stations built in the north Pittsburgh area.

Over time, the three railroads went out of business, but CSX Transportation and the Buffalo and Pittsburgh Railroad continue to use the yard near the West Pittsburg Station to transport freight to cities like Pittsburgh, Butler, Cleveland, New Castle, and Youngstown.